Where does “alloisomerism” come from?

alloisomerism (English) comes from English isomerism, from English isomer, from English ISO, from Greek ίσος, from Ancient Greek ἴσος, from Ancient Greek δάκτυλος, from Hebrew דקל, from German Dackel — to sire, beget.

Ancestry of “alloisomerism”, step by step

alloisomerism traces back through two separate lines of ancestry.

via English isomerism

StepLanguageWordMeaning
1Englishisomerismthe phenomenon of the existence of isomers - the...
2EnglishisomerAny of two or more compounds with the same...
3EnglishISOThe International Organization for Standardization
4Greekίσοςequal; having equal rights
5Ancient Greekἴσοςequal (to); equivalent (to); consistent (to); agreement (to)
6Ancient Greekδάκτυλοςfinger; measure of length, the breadth of a...
7Hebrewדקלpalm tree; date; dachshund
8GermanDackeldachshund; a similar-looking dog, e.g. a basset...
9GermanDachshunddachshund; a similar-looking dog, e.g. a basset...
10GermanDachsbadger; genitive singular of Dach
11Old High Germandahs
12Proto-West Germanicþahsbadger
13Proto-Germanicþahsuzbadger
14Proto-Indo-Europeantótḱus
15Proto-Indo-Europeantetḱ-to create, produce; to cut, hew
16Proto-Indo-Europeanteḱ-to sire, beget

via English allo

StepLanguageWordMeaning
1EnglishalloAlternative spelling of 'allo
2EnglishallosexualDirected toward or involving another person...
3Englishallo-different, other; isomeric; especially, of amino...
4Ancient Greekἄλλοςother, another, different, else; in combination...
5Ancient GreekκρίνωTo separate, divide, part, distinguish between...
6Proto-Hellenickríňňō
7Proto-Indo-Europeankrinyéti
8Proto-Indo-Europeankrey-to sift, separate, divide
Every word from Proto-Indo-European teḱ-Every word from Proto-Indo-European tetḱ-Every word from Proto-Indo-European tótḱus